body {
      background: #0e0e0e;
      color: #fff;
      font-family: 'Poppins', sans-serif;
    }

    .navbar {
      background: #181818 !important;
      box-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
    }

    .nav-link {
      color: #ddd !important;
      transition: color 0.3s;
    }

    .nav-link:hover {
      color: #0d6efd !important;
    }

    .navbar-brand img {
      border-radius: 5px;
    }

    .payment-card {
      background: #1b1b1b;
      color: #fff;
      padding: 40px;
      border-radius: 15px;
      max-width: 600px;
      margin: 60px auto;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
      transition: all 0.3s ease;
    }

    .payment-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
    }

    .step-list li {
      margin-bottom: 10px;
      color: #ccc;
    }

    .btn-submit {
      border-radius: 30px;
      transition: 0.3s ease-in-out;
      font-weight: 600;
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(255, 255, 255, 0.3);
    }

    #subscription {
      margin-top: 80px;
    }

    .card {
      background: #1b1b1b;
      color: #fff;
      border: none;
      border-radius: 15px;
      transition: all 0.3s ease;
    }

    .card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .card-header {
      background: #0d6efd;
      color: #fff;
      border-top-left-radius: 15px !important;
      border-top-right-radius: 15px !important;
    }

    .pricing-card-title {
      color: #0d6efd;
    }

    .btn-primary {
      background-color: #0d6efd;
      border: none;
      border-radius: 25px;
      transition: background 0.3s ease;
    }

    .btn-primary:hover {
      background-color: #0056d2;
    }

    footer {
      background-color: #181818;
      margin-top: 60px;
      color: #aaa;
      text-align: center;
      padding: 20px;
      font-size: 0.9rem;
    }

    footer a {
      color: #0d6efd;
      text-decoration: none;
    }

    footer a:hover {
      text-decoration: underline;
    }